Intel USB 3.0 eXtensible host driver gives Code 52: Windows cannot verify the digital signature for the drivers required for this device. New Dell with i5 6500. USB are not active when computer wakes, usb drives do not work, mouse and kb are spotty in per

This one has me stumped... I have two machines doing the same thing.

Machine has Windows 7 Ent 64-bit.

Error code is show in device manager. Uninstall > reinstall does nothing. Can boot > hit F8 > disable driver signature enforcement and everything works great!